Answers
Answer:
A.
Step-by-step explanation:
The required stories that are models of the given expression -6 + 3x = 2 + 4x are given in A and B. Both options are correct.
What are equation models?The equation model is defined as the model of the given situation in the form of an equation using variables and constants.
Option A,
At 5 p.m., the temperatures recorded at two weather stations in Antarctica are -6 degrees and 2 degrees. The temperature changes at the same constant rate, x degrees per hour, throughout the night at both locations. The temperature at the first station 3 hours after this recording is the same as the temperature at the second station 4 hours after this recording.
So from the above statement,
The equation modeled is given as
-6 + 3x = 2 + 4x
The above expression is equivalent to the given statement. So story mentioned in option A matches the given equation.
Similarly,
The equation formed in Option B also matches the given equation.
Thus, both options are correct.
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Related Questions
A dog groomer wants to gather information about how often dog owners have their dogs groomed. She decides to take
a sample from her local veterinarian's office, which provides an alphabetized list of all clients who bring in dogs. The
dog groomer randomly selects one of the first 10 clients, and calls that client and every 10th client after that on the list
to inquire about dog-grooming habits. What kind of sample is this?
Answers
Answer:
a systematic random sample
What steps would you follow in order to solve the equation?
w/8 - 4 = 20
add 4 on each side and divide by 8
subtract 4 on each side and multiply by 8
add 4 on each side and multiply by 8
subtract 4 on each side and divide by 8
Answers
Answer:
128Step-by-step explanation:
Step one:
given the expression w/8 - 4 = 20
the first operation is to isolate the term that has w by adding 4 to both sides
w/8 - 4+4 = 20+4
w/8 = 16
Required
the value of w
Step two:
the next step is to cross multiply
w=16*8
w=128
The sum of two numbers is 67 and the difference is 13 . What are the numbers? PLEASE HELP IM NEW TO THIS AND WANT MY GRADES TO COME UP!!!!!!!!
Answers
Answer:
The two numbers are 40, and 27.
Explanation:
Since there are only two numbers, with two different aspects, you can just make
a system, and solve.
A sum of two numbers adding up to 67 can be modeled by: x + y = 67.
A difference of those same two numbers being 13 can be modeled by: x – y = 13.
You can add the two equations together to eliminate the y value because the -y and y will cancel out:
x + y = 67.
+ x – y = 13.
And you get: 2x = 80.
Now to find x, just divide by 2 on both sides to cancel out the coefficient of 2 in 2x:
2x = 80
÷2 ÷2
x = 40.
So the first number is 40.
Since we know the first number, we can immediately find the other number by substituting it into the first equation.
x = 40 → x + y = 67
(40) + y = 67
-40. -40
Subtract from both sides to cancel the constant terms.
Then you will get that y or the second number is y = 27.
This is true because 40 + 27 = 67, and 40 - 27 = 13.
I WILL MARK BRAINIEST
Answers
Answer:parallel
Step-by-step explanation:
If M is in the interior of ∠RTD, m∠RTM = 40°, and m∠RTD = 65°, then m∠MTD = .
Answers
Answer:
MTD = 75
Step-by-step explanation:
RTD + RTM + MTD = 180
65 + 40 + MTD = 180
105 + MTD = 180
Subtract 105 from both sides.
MTD = 75
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When two straight lines or rays intersect at a shared endpoint, an angle is generated. The measure of the angle ∠MTD is equal to 15°.
What is an angle?When two straight lines or rays intersect at a shared endpoint, an angle is generated. An angle's vertex is the common point of contact. Angle is derived from the Latin word angulus, which means "corner."
Given that point M is in the interior of ∠RTD. Also, the measure of ∠RTM=40°, and ∠RTD = 65°.
Now, since the two angles together form ∠RTD, therefore, we can write,
∠RTD = ∠RTM + ∠MTD
65° = 40° + ∠MTD
∠MTD = 65° - 40°
∠MTD = 15°
Hence, the measure of the angle ∠MTD is equal to 15°.
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which number is irrational?
a. 0.3 repeating
b. 5/6
c. square root of 2
d. the square root of 9
Answers
Answer: square root of 2
Step-by-step explanation:
There is no definitive answer for it, so it is irrational.
john is 2 years younger than his sister, annie. Last year, John was half Annie's age. How old are john and Annie now?
Answers
Answer:
John is 3 and Annie is 5 because to be half of someone's age while being to years younger it would have to be 2 and 4 - but then a year passed and so the are now 3 and 5.
Step-by-step explanation:
The present age of John is 3 years
The present age of Annie is 5 years
Given that John is 2 years younger than Annie's age
Let the present age of John be "J"
Let the present age of Annie be "A"
According to the given situation
[tex]\rm J = A -2........(1)\\[/tex]
One year ago the age of John = [tex]\rm J-1[/tex]
One year ago the age of Annie = [tex]\rm A -1[/tex]
According to the given situation
[tex]\rm\dfrac{A-1}{2}= J-1.........(2)[/tex]
On solving for equations (1) and (2) we get
A = 5 and J = 3
So the present age of Annie is 5 years
The present age of John is 3 Years
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Pythagorean theorem: Manuel purchases a rectangular picture
frame that has a diagonal measure of
17 inches and a height of 8 Inches. What is
the width of the picture frame?
Answers
Answer:
width = 15
Step-by-step explanation:
a² + b² = c² This the the formula
(PLUG IN)
8² + b² = 17²
64 + b² = 289 (subtract 64 on both sides)
b² = 225 (square root)
b = 15
Hope this helps ya!!
represent the following sentence as an algebraic expression , where '' a number '' is the letter x . you do not need to simplify
7 lesss than the product of 5 and a number
Answers
That’s the expression, I believe
Answer:
5x-7
Step-by-step explanation:
5x-7
Product=multiply so 5x and less than is minus so 5x-7.
Hope this helps :D
How do organism replace dead or injured cells? Organisms can take cells from other organisms. Organisms are limited to the amount of new cells that they can make through their lifetime. Organisms can make new cells by consuming other organisms. Organisms go through mitosis that allows new identical cells to be made.
Answers
Answer: Organisms go through mitosis that allows new identical cells to be made.
explanation:
mitosis also occures when cells are worn out or are injured and the mitosis will replace the injured cells
triangle sum theorem
WILL MARK BRAINLIEST
Answers
Step-by-step explanation:
13) 4x-22+x+11+10x-4 =180
15x=195
x=13
<P=(10(13)-4)=126
<Q=(4(13)-22)=30
<R=13+11=24
The question is this: Rationalize the denominator and simplify.
Plssss hurry & answer this!!!!
Answers
9514 1404 393
Answer:
[tex]\dfrac{20+5\sqrt{3}}{13}[/tex]
Step-by-step explanation:
Multiply numerator and denominator by the "conjugate" of the denominator.
[tex]\dfrac{5}{4-\sqrt{3}}=\dfrac{5(4+\sqrt{3})}{(4-\sqrt{3})(4+\sqrt{3})}=\dfrac{20+5\sqrt{3}}{4^2-(\sqrt{3})^2}=\boxed{\dfrac{20+5\sqrt{3}}{13}}[/tex]
__
This is done in different scenarios in order to take advantage of the factoring of the difference of squares. Square root terms and imaginary terms in the denominator can be eliminated in this way.
a² - b² = (a -b)(a +b)
A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.
Empty Scale Weight Displays
Scale 1
–1 ounce
Scale 2
–2 ounces
Scale 3
0 ounces
Scale 4
–1 ounce
What is the average error in the scale displays?
–4 ounces
–1 ounces
0 ounces
1 ounce
Mark this and return
Answers
Answer:
-1
Step-by-step explanation:
Answer:
-1
Step-by-step explanation:
on edge ;)
write 0.00000000018 in a scientific notation
Answers
Answer:
[tex]1.8*10^{-10}[/tex]
Step-by-step explanation:
To find the number in scientific notation you want to find how many times you have to move the decimal to get the decimal to be right after the first non-zero number. If you move to the left the exponent is positive and if you move it to the right the exponent is negative. The answer would be [tex]1.8*10^{-10}[/tex].
A drawer of loose socks contains 2 red socks, 2 green socks, and 6 white socks. What best describes how to determine the probibility of pulling a white sock, not replacing it, then pulling out another white sock?
Answers
Answer:
Probability = 1/3
Step-by-step explanation:
The drawer of loose socks contains 2 red socks, 2 green socks, and 6 white socks.
This is a total of 10 socks.
Probability of pulling a white socks = 6/10
Since it is not replaced, it means we have 5 white socks left out of a total of 9 now.
Probability of pulling out another white socks = 5/9
Thus;
The combined probability is;
6/10 × 5/9 = 30/90 = 1/3
Hellooooo!
My Answer:
The answer is letter C.
The Explanation:
The probability that the first sock is white is 6/10 and the second one is white is 5/9, so the probability of choosing a pair of white socks is 30/90 = 1/3.
what scale factor is applied to shape b to make shape A:
A. 1/2
B. 3/4
C.4/3
D. 2
Answers
Answer:
D. 2
Step-by-step explanation:
Answer:
D.2
Step-by-step explanation:
you need to multiply the sides of B by 2 to get the sides of A.
3 times 2= 6
6 times 2=12
4 times 2=8
What is the slope of the line that passes through the points
(-10,-8) and (-8, -16)? Write your answer in simplest
form.
Answers
PLZZ HELP ITS FROR A TEST THAT I EED TO PASS !!!!!
Frankenstein is definitely a classic and he can still manage to get a few scares, but the also classic Werewolf has seen better days. The Werewolf is often the target of scares and has an equation perpendicular to Frankenstein's. Frankenstein's equation is`y=x+5` and the Werewolf's equation passes through the point `\left(-1,-2\right).` What is the Werewolf's equation?
Answers
Answer:
3)-rightx (877
A worker has four different job offers, each with a contract for six years. Assuming the job descriptions are identical,
which offer will allow the worker to earn the most over six years?
O a starting salary of $49.000 with a 3% increase each year
O a starting salary of $51 000 with a 1% increase each year
O a starting salary of $48,000 with a 6% increase each year
a starting salary of $50,000 with a 2% increase each year
Answers
9514 1404 393
Answer:
$48,000 to start, with 6% raises
Step-by-step explanation:
The starting salaries are within a few percentage points of each other, so the majority of the difference in earnings will come because of the raises. The offer with the largest raise percentage is likely the best.
The earnings total can be figured as the sum of a geometric series with a first term of "starting salary" and a growth factor of (1+raise percentage). For starting salary 's' and raise percentage 'r', the total earnings in 6 years will be ...
S = s((1+r)^6 -1)/r
Here are the total earnings, in thousands, for each of the offers:
a) s = 49, r = .03, S = 316.95
b) s = 51, r = .01, S = 313.75
c) s = 48, r = .06, S = 334.82 . . . . best offer
d) s = 50, r = .02, S = 315.41
The worker can earn the most from a starting salary of $48,000 and 6% increases each year.
C) a starting salary of $48,000 with a 6% increase each year
what does x = ? need help with the pythagorean theorem
Answers
Answer:
x = 13
Step-by-step explanation:
x = hypotenuse which is c in the Pythagorean theorem
c = √a^2 + b^2
c = √12^2 + 5^2
c = 13
Will Give brainliest 40 POINTS
In the figure above, lines l and m are parallel. What is the value of x?
Select one:
A. 55
B. 57
C. 61
D. 63
Answers
Answer:
55
Step-by-step explanation:
Please let me know if you need an explanation.
Order the numbers from least to greatest.−34, 0.5, 2/3,−73, 1.2, the 2/3 one is supposed to be 2 thirds and the negative 73 is supposed to be - 7 thirds, and the -34 is supposed to be - 3 fourths
Answers
Answer:
????hold on I brb let me think right quick
Answer:
-7/3 , -3/4 , 0.5 , 2/3, 1.2 this is the answer according to me
find the value of x that would prove y/z State the converse used to support your answer.
Answers
Answer:
x=6
alternative exterior angles
Step-by-step explanation:
to prove y and z parallel then the two angles must be equal:
11x-3=4x+39
11x-4x=39+3
7x=42
x=42/7
x=6
Narrowing (see also stenosis) artery I77.1. Identify the meaning of the cross reference term indicated in the statement above.
A) The coder is instructed to go to the term stenosis to find a correct code. Mandatory instruction.
B) The coder is instructed to see also stenosis to look for more information if a specific code or subterm cannot be found under the main term Narrowing.
C) Not a mandatory instruction.
D) The coder is instructed to use the I77.1 code if a specific subterm under the main term Narrowing cannot be found.
E) The coder is instructed to use the code I77.1 and then look for an additional code under the term stenosis.
Answers
Answer:
C Not a mandatory instruction
Step-by-step explanation:
if a triangle has a side length of 10
12 and 15 what type of triangle is it
Answers
fimd the measure of an interior angle polygon with 12 sides
Answers
Answer:
150 degrees
Step-by-step explanation:
This image should help. (It was hard to explain, sorry about that ._.)
Pls answer 4 and 5 for brainly
Answers
Number 4 would be: C
And number 5 would be: C
Please Mark as Brainliest!!!
Answer:
Number 4 is c 1/6 and number 5 is also c
Step-by-step explanation:
I just divided 1 and 6 and got 0.1666
and did the same for the other one
pls mark brainliest
Write the following number in
scientific notation.
653,000
Answers
Answer:
6.53 X 10^5
Step-by-step explanation:
Answer:6.53 x 10*5
Step-by-step explanation:i don’t know how to show 5 as a small number but it’s an exponent
find the value of x that makes m||n
Answers
Answer:
x = 6
Step-by-step explanation:
In order for m to be parallel to n 16x - 6 would have to equal 90. We can demonstrate that using an equation.
16x - 6 = 90
Let's solve for x:
First add 6 to both sides to isolate the 16x:
16x - 6 + 6 = 90 + 6
16x = 96
Now divide both sides by 16 to isolate the x:
16x/16 = 96/16
x = 6
The value of x has to be 6 in order for m to be parallel to n.
Find the x-intercept and y-intercept of the line. 3x-6y=12
Answers
Answer:
the y- intercept is "3" and the x- intercept is "6"
Step-by-step explanation: